WIP bindings: Add support for the record<K,V> WebIDL type.

third_party/WebKit/Source/bindings/core/v8/V8StringResource.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 160 matching lines @@
 template <V8StringResourceMode Mode = DefaultMode>
 class V8StringResource {
   STACK_ALLOCATED();
 
  public:
   V8StringResource() : m_mode(Externalize) {}
 
   V8StringResource(v8::Local<v8::Value> object)
       : m_v8Object(object), m_mode(Externalize) {}
 
+  V8StringResource(v8::Local<v8::String> object)
+      : m_v8Object(object), m_mode(Externalize) {}
+
   V8StringResource(const String& string)
       : m_mode(Externalize), m_string(string) {}
 
   void operator=(v8::Local<v8::Value> object) { m_v8Object = object; }
 
   void operator=(const String& string) { setString(string); }
 
   void operator=(std::nullptr_t) { setString(String()); }
 
   bool prepare() {  // DEPRECATED
@@ skipping 110 matching lines @@
 
 template <>
 inline String
 V8StringResource<TreatNullAndUndefinedAsNullString>::fallbackString() const {
   return String();
 }
 
 }  // namespace blink
 
 #endif  // V8StringResource_h